Shannon information capacity of time reversal wideband multiple-input multiple-output system based on correlated statistical channels

doi:10.1088/1674-1056/25/5/050101

Abstract Utilizing channel reciprocity, time reversal (TR) technique increases the signal-to-noise ratio (SNR) at the receiver with very low transmitter complexity in complex multipath environment. Present research works about TR multiple-input multiple-output (MIMO) communication all focus on the system implementation and network building. The aim of this work is to analyze the influence of antenna coupling on the capacity of wideband TR MIMO system, which is a realistic question in designing a practical communication system. It turns out that antenna coupling stabilizes the capacity in a small variation range with statistical wideband channel response. Meanwhile, antenna coupling only causes a slight detriment to the channel capacity in a wideband TR MIMO system. Comparatively, uncorrelated stochastic channels without coupling exhibit a wider range of random capacity distribution which greatly depends on the statistical channel. The conclusions drawn from information difference entropy theory provide a guideline for designing better high-performance wideband TR MIMO communication systems.

Keywords: information entropy time reversal wideband multiple-input multiple-output (MIMO) system antenna mutual coupling

Received: 05 November 2015
Revised: 18 January 2016
Accepted manuscript online:

PACS:	01.20.+x	(Communication forms and techniques (written, oral, electronic, etc.))
	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61331007, 61361166008, and 61401065) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20120185130001).

Corresponding Authors: Bing-Zhong Wang
E-mail: bzwang@uestc.edu.cn

Cite this article:

Yu Yang(杨瑜), Bing-Zhong Wang(王秉中), Shuai Ding(丁帅) Shannon information capacity of time reversal wideband multiple-input multiple-output system based on correlated statistical channels 2016 Chin. Phys. B 25 050101

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Shannon information capacity of time reversal wideband multiple-input multiple-output system based on correlated statistical channels

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